Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9053463 | Apparatus and method for pushing e-mail to portable terminal in e-mail system | Chul-Hwan Lee | 2015-06-09 |
| 9014672 | Apparatus and method for e-mail polling in portable terminal | Chul-Hwan Lee | 2015-04-21 |
| 7505469 | Method for reporting transmission state by internet protocol and network using the same | — | 2009-03-17 |
| 7334175 | Method for driving retransmission timer in mobile telecommunications system using radio link protocol | — | 2008-02-19 |